TDA7384A Datasheet. Www.s Manuals.com. St

User Manual: Datasheets TDA7384A.

Open the PDF directly: View PDF .
Page Count: 15

Download
Open PDF In Browser	View PDF

TDA7384A
4 x 42W quad bridge car radio amplifier
Features
■

High output power capability:
– 4 x 42 W / 4 Ω max.
– 4 x 27 W / 4 Ω @ 14.4 V, 1 kHz, 10 %

■

Low distortion

■

Low output noise

■

Standby function

■

Mute function

■

Automute at min. supply voltage detection

■

Low external component count:
– Internally fixed gain (26 dB)
– No external compensation
– No bootstrap capacitors

Flexiwatt25

■

Protections:

Description

■

Output short circuit to GND, to VS, across the
load

■

Very inductive loads

■

Overrating chip temperature with soft thermal
limiter

■

Load dump voltage

■

Fortuitous open GND

■

Reversed battery

Table 1.

ESD

The TDA7384A is an AB class audio power
amplifier, packaged in Flexiwatt 25 and designed
for high end car radio applications.
Based on a fully complementary PNP/NPN
configuration, the TDA7384A allows a rail to rail
output voltage swing with no need of bootstrap
capacitors. The extremely reduced boundary
components allows very compact sets.

Device summary
Order code

Package

Packing

TDA7384A

Flexiwatt25

Tube

October 2008

Rev 3

1/14
www.st.com

1

Contents

TDA7384A

Contents
1

Block and pin connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3

2.1

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2

Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4

PCB and component layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.5

Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1

SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2

Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3

Standby and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4

Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2/14

TDA7384A

List of tables

List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.

Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3/14

List of figures

TDA7384A

List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.

4/14

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Components and top copper layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Bottom copper layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Quiescent current vs. supply current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output power vs. supply voltage (4Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Distortion vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Output noise vs. source resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power dissipation and efficiency vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Flexiwatt25 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

TDA7384A

Block and pin connection diagrams
Figure 1.

Block diagram
Vcc1

Vcc2
470μF

100nF

ST-BY
NC

MUTE

OUT1+
OUT1-

IN1

PW-GND

0.1μF

OUT2+
OUT2-

IN2
0.1μF

PW-GND
OUT3+
OUT3-

IN3

PW-GND

0.1μF

OUT4+
OUT4-

IN4

PW-GND

0.1μF
AC-GND

SVR

0.47μF

TAB

S-GND

47μF
D99AU1018MOD

Pin connection

N.C.

P-GND4

MUTE

OUT4-

VCC

OUT4+

OUT3-

OUT3+

P-GND3

IN3

AC-GND

IN4

IN2

S-GND

IN1

SVR

OUT1+

P-GND1

VCC

OUT1-

ST-BY

OUT2+

25

OUT2-

1

TAB

Figure 2.

P-GND2

1

Block and pin connection diagrams

D94AU159B

5/14

Electrical specifications

TDA7384A

2

Electrical specifications

2.1

Absolute maximum ratings
Table 2.

Absolute maximum ratings

Symbol

Parameter

Value

Unit

Operating supply voltage

18

V

VS (DC)

DC supply voltage

28

V

VS (pk)

Peak supply voltage (t = 50 ms)

50

V

Output peak current:
Repetitive (duty cycle 10 % at f = 10 Hz)
Non repetitive (t = 100 μs)

4.5
5.5

A
A

Power dissipation, (Tcase = 70 °C)

80

W

Tj

Junction temperature

150

°C

Tstg

Storage temperature

– 55 to 150

°C

VS

IO
Ptot

2.2

Thermal data
Table 3.

Thermal data

Symbol
Rth j-case

Parameter
Thermal resistance junction to case

max.

Value

Unit

1

°C/W

2.3

Electrical characteristics

Table 4.

Electrical characteristics
(VS = 14.4 V; f = 1 kHz; Rg = 600 Ω; RL = 4 Ω;Tamb = 25 °C; Refer to the test and application
diagram (Figure 3), unless otherwise specified.)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

120

190

350

mA

±100

mV

+80

mV

27

dB

±1

dB

Quiescent current

RL = ∞

VOS

Output offset voltage

Play mode

dVOS

During mute ON/OFF output
ITU R-ARM weighted
offset voltage

-80

Gv

Voltage gain

25

ΔGv

Channel gain unbalance

Iq1

Po
Po max
THD

6/14

Output power
Max. output
Distortion

power(1)

26

THD = 10%; VS = 14.4V

24

27

W

THD = 10%; VS = 13.2V

20

22

W

VS = 14.4V

38

42

W

Po = 4W

0.04

0.15

%

TDA7384A
Table 4.

Symbol

Electrical specifications
Electrical characteristics (continued)
(VS = 14.4 V; f = 1 kHz; Rg = 600 Ω; RL = 4 Ω;Tamb = 25 °C; Refer to the test and application
diagram (Figure 3), unless otherwise specified.)
Parameter

Test condition

Min.

Typ.

Max.

Unit

"A" Weighted

50

70

μV

Bw = 20 Hz to 20 kHz

70

100

μV

eNo

Output noise

SVR

Supply voltage rejection

f = 100 Hz; Vr = 1 Vrms

50

65

dB

fch

High cut-off frequency

Po = 0.5 W

100

200

KHz

Ri

Input Impedance

70

100

KΩ

70

dB

Cross talk

f = 1 kHz; Po = 4 W

60

CT

f = 10 kHz; Po = 4 W

50

60

dB

ISB

Standby current
consumption

VSt-by = 0 V

20

µA

Ipin4

Standby pin current

VSt-by = 1.2 to 2.6 V

±1

µA

VSB out

Standby out threshold
voltage

(Amp: ON)

VSB IN

Standby in threshold voltage (Amp: OFF)

3.5
1.5

Mute attenuation

POref = 4 W

80

VM out

Mute out threshold voltage

(Amp: Play)

3.5

VM in

Mute in threshold voltage

(Amp: Mute)

VS automute threshold

(Amp: Mute); Att ≥ 80 dB;
POref = 4 W
(Amp: Play); Att < 0.1 dB;
PO = 0.5 W

AM

VAM in

Ipin22

Muting pin current

VMUTE = 1.2 V
(Source current)

V

90

dB
V
1.5
6.5

5

V

7.6

8.5

11

20

V

V

µA

1. Saturated square wave output.

7/14

Electrical specifications
Figure 3.

TDA7384A

Standard test and application circuit
C8
0.1μF

C7
2200μF
Vcc1-2

Vcc3-4
6

R1

20

4

ST-BY
10K
R2

9

C9
1μF

7

22

MUTE
47K

C10
1μF

5

C1

3

0.1μF
12

IN2

17

C2 0.1μF

19

15
C3 0.1μF

21

IN4

14
S-GND

23
16

10
SVR
C6
47μF

25
N.C.

1
TAB

PCB and component layout
Referred to Figure 3: Standard test and application circuit.
Figure 4.

8/14

OUT4

24

13

C5
0.47μF

2.4

OUT3

18

IN3

C4 0.1μF

OUT2

2

11

IN1

OUT1

8

Components and top copper layer

D95AU335C

TDA7384A

Electrical specifications
Figure 5.

Bottom copper layer

2.5

Electrical characteristic curves

Figure 6.

Quiescent current vs. supply
voltage

Figure 7.

Quiescent current vs. supply
current

9/14

Electrical specifications

Figure 8.

Output power vs. supply voltage
(4Ω)

Figure 10. Distortion vs. frequency

TDA7384A

Figure 9.

Distortion vs. output power

Figure 11. Supply voltage rejection vs.
frequency

Figure 12. Output noise vs. source resistance Figure 13. Power dissipation and efficiency
vs. output power

10/14

TDA7384A

3

Application hints

Application hints
Referred to the circuit of Figure 3.

3.1

SVR
Besides its contribution to the ripple rejection, the SVR capacitor governs the turn ON/OFF
time sequence and, consequently, plays an essential role in the pop optimization during
ON/OFF transients.
To conveniently serve both needs, its minimum recommended value is 10µf.

3.2

Input stage
The TDA7384A’s inputs are ground-compatible and can stand very high input signals
(± 8 Vpk) without any performances degradation.
If the standard value for the input capacitors (0.1 µF) is adopted, the low frequency cut-off
will amount to 16 Hz.

3.3

Standby and muting
Standby and muting facilities are both 3.3 V CMOS-compatible. If unused, a straight
connection to Vs of their respective pins would be admissible.
Conventional/low-power transistors can be employed to drive muting and stand-by pins in
absence of true CMOS ports or microprocessors. R-C cells have always to be used in order
to smooth down the transitions for preventing any audible transient noises.
Since a DC current of about 10 µA normally flows out of pin 22, the maximum allowable
muting-series resistance (R2) is 70 kΩ, which is sufficiently high to permit a muting capacitor
reasonably small (about 1µF).
If R2 is higher than recommended, the involved risk will be that the voltage at pin 23 may rise
to above the 1.5 V threshold voltage and the device will consequently fail to turn OFF when
the mute line is brought down.
About the stand-by, the time constant to be assigned in order to obtain a virtually pop-free
transition has to be slower than 2.5 V/ms.

11/14

Package information

4

TDA7384A

Package information
In order to meet environmental requirements, ST (also) offers these devices in ECOPACK®
packages. ECOPACK® packages are lead-free. The category of second Level Interconnect
is marked on the package and on the inner box label, in compliance with JEDEC Standard
JESD97. The maximum ratings related to soldering conditions are also marked on the inner
box label.
ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
Figure 14. Flexiwatt25 mechanical data and package dimensions
DIM.
A
B
C
D
E
F (1)
G
G1
H (2)
H1
H2
H3
L (2)
L1
L2 (2)
L3
L4
L5
M
M1
N
O
R
R1
R2
R3
R4
V
V1
V2
V3

MIN.
4.45
1.80
0.75
0.37
0.80
23.75
28.90

22.07
18.57
15.50
7.70

3.70
3.60

mm
TYP.
4.50
1.90
1.40
0.90
0.39
1.00
24.00
29.23
17.00
12.80
0.80
22.47
18.97
15.70
7.85
5
3.5
4.00
4.00
2.20
2
1.70
0.5
0.3
1.25
0.50

MAX.
4.65
2.00

MIN.
0.175
0.070

1.05
0.42
0.57
1.20
24.25
29.30

0.029
0.014
0.031
0.935
1.139

22.87
19.37
15.90
7.95

0.869
0.731
0.610
0.303

4.30
4.40

0.145
0.142

inch
TYP.
0.177
0.074
0.055
0.035
0.015
0.040
0.945
1.150
0.669
0.503
0.031
0.884
0.747
0.618
0.309
0.197
0.138
0.157
0.157
0.086
0.079
0.067
0.02
0.12
0.049
0.019

MAX.
0.183
0.079

OUTLINE AND
MECHANICAL DATA

0.041
0.016
0.022
0.047
0.955
1.153

0.904
0.762
0.626
0.313

0.169
0.173

Flexiwatt25 (vertical)

5˚ (T p.)
3˚ (Typ.)
20˚ (Typ.)
45˚ (Typ.)

(1): dam-bar protusion not included
(2): molding protusion included

V
C
B
V
H
H1

V3

A

H2

O

H3

R3

L4

R4
V1
R2

L2

N

L3

R

L

L1

V1

V2

R2

D

R1
L5

Pin 1

R1

R1
E

G

G1

F
FLEX25ME

M

M1

7034862

12/14

TDA7384A

5

Revision history

Revision history
Table 5.

Document revision history

Date

Revision

Changes

05-Dec-2001

1

Initial release.

11-Dec-2007

2

Updated in the Table 4 the values of the parameters Po and Po max .

10-Oct-2008

3

Updated Table 3: Thermal data on page 6.

13/14

TDA7384A

Please Read Carefully:

Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the
right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any
time, without notice.
All ST products are sold pursuant to ST’s terms and conditions of sale.
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no
liability whatsoever relating to the choice, selection or use of the ST products and services described herein.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this
document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products
or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such
third party products or services or any intellectual property contained therein.

UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS
OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT
RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING
APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,
DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE
GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.

Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void
any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any
liability of ST.

ST and the ST logo are trademarks or registered trademarks of ST in various countries.
Information in this document supersedes and replaces all information previously supplied.
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.

© 2008 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com

14/14

www.s-manuals.com



---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.4
Linearized                      : No
Page Mode                       : UseOutlines
XMP Toolkit                     : Adobe XMP Core 4.0-c316 44.253921, Sun Oct 01 2006 17:14:39
Producer                        : Acrobat Distiller 7.0.5 (Windows) (via http://big.faceless.org/products/pdf?version=2.6.5)
Creator Tool                    : FrameMaker 7.2
Modify Date                     : 2013:03:19 00:29:23+02:00
Create Date                     : 2008:10:16 12:42:22Z
Metadata Date                   : 2013:03:19 00:29:23+02:00
Format                          : application/pdf
Description                     : 
Creator                         : 
Title                           : TDA7384A - Datasheet. www.s-manuals.com.
Date                            : 2008:10:27 09:49:21+0100
Subject                         : TDA7384A - Datasheet. www.s-manuals.com.
Document ID                     : uuid:d04e4b43-26b8-411f-9b4a-17ae2fc89aeb
Instance ID                     : uuid:c8742595-efee-4f1c-b03c-e6796304a76f
Page Count                      : 15
Page Layout                     : OneColumn
Keywords                        : TDA7384A, -, Datasheet., www.s-manuals.com.
Warning                         : [Minor] Ignored duplicate Info dictionary

EXIF Metadata provided by EXIF.tools